Related by context. Frequent words. (Click for all words.) 44 Daniel Tani 43 Mastracchio 42 robotic arm 40 shuttle robotic arm 39 spacewalkers 38 Fincke 38 motorized wheelchair 36 shuttle astronauts 36 astronaut 35 Parazynski 35 spacesuit 35 Stryker 35 insulin pump 35 spacewalker 35 tow rope 34 Spacewalkers 34 Yurchikhin 34 prosthesis 34 shuttle Discovery 34 Curbeam 34 prosthetic 34 orbiter 34 Hendrickson 33 breathing tube 33 orbiting lab 33 wheelchair 33 Vinogradov 33 prosthetic arm 33 Kittinger 33 Henrie 32 Grider 32 Flight Engineer 32 spacewalking 32 Dextre 32 Dial Ride 32 zero gravity 32 prosthetic limb 32 mower 32 prosthetic legs 32 spacewalking astronauts 32 rotary joint 32 Paratransit 32 Lopez Alegria 32 Hubble 32 Endeavour 31 ammonia tank 31 neck brace 31 Melroy 31 paratransit 31 shuttle Endeavour 31 astronauts 31 Chamitoff 31 riding lawn mower 31 space shuttle Discovery 31 weightlessness 31 International Space Station 31 spinal muscular atrophy 31 crewmates 31 handlebar 31 Kyler 30 electric scooter 30 motorized cart 30 handrail 30 Stefanyshyn Piper 30 Atlantis astronauts 30 Soyuz 30 orbiting outpost 30 Soyuz TMA 30 lander 30 stroller 30 spacewalk 30 scooter 30 humvee 30 Kibo 30 prosthetic leg 30 gyroscope 30 ambulance 30 Space Shuttle Endeavour 30 colostomy bag 29 Robonaut 29 Tracy Caldwell Dyson 29 thruster 29 spacecraft 29 lawn chair 29 spacesuits 29 spina bifida 29 prosthetic limbs 29 orbiting laboratory 29 microgravity 29 metal rod 29 footrest 29 artificial limb 29 Mars rovers 29 cerebral palsy 29 physical therapist 29 Endeavour astronauts 29 sled 29 Space Shuttle Discovery 29 handlebars 29 Soichi Noguchi 29 Wakata